◎ 题干
Do remember to __________the lights before you leave. If you leave them    _______, the  boss will be
angry with you.        
[     ]
A. turn on, on    
B. turn down, off  
C. turn off, off    
D. turn off, on
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“Do remember to __________the lights before you leave. If you leave them _______, theboss will beangry with you. [ ]A.turn on, on B.turn down, offC.turn off,…”主要考查了你对  【动词短语】【介词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。